Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:18:30

Orbital Elements for I298
WDS: I298 WDS ID/Discoverer
P: 590.000 Orbital period (years)
a: 1.0 Semi-major axis (arcseconds)
i: 115.2 Inclination (degrees)
Ω: 178.8 Longitude of ascending node (degrees)
T: 2030.000 Epoch of periastron passage (year)
e: 0.347 Eccentricity
ω: 70.3 Longitude of periastron (degrees)
Start-Year: 1730.0 Year
End-Year: 2320.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I298
Position: 133232.77-691354.0 Epoch-2000 right ascension and declination
WDS-ID: 13325-6914 WDS designation
Discoverer Code: I298 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 117445 HD catalog number
Hipparcos number: 66057 Hipparcos catalog number
V1: 7.36 Magnitude of the primary
V2: 8.54 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1991 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for I298
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:18:30 2025

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/cgi-bin/ds_orbit.py in <module>
    891 
    892 # Smooth curve if necessary
=>  893 x_smooth, y_smooth = Q_get_smoothed_orbit(x_list, y_list)
    894 plt.plot(x_smooth, y_smooth, label=f'Orbit of {wds}', color='#528B8B')
    895 
x_smooth undefined, y_smooth undefined, Q_get_smoothed_orbit = <function Q_get_smoothed_orbit>, x_list = [0.5444406694290911, 0.5454727568107971, 0.5464795224329934, 0.5474609238487435, 0.5484169185756942, 0.5493474640916114, 0.5502525178300285, 0.5511320371759969, 0.5519859794619416, 0.5528143019636234, 0.5536169618962004, 0.5543939164103963, 0.5551451225887657, 0.5558705374420657, 0.5565701179057242, 0.557243820836412, 0.5578916030087122, 0.5585134211118917, 0.559109231746772, 0.5596789914226995, ...], y_list = [0.4774041559084439, 0.4704983031324056, 0.4635706090249827, 0.45662139882241887, 0.44965099762620975, 0.4426597304349328, 0.43564792217612736, 0.4286158977382663, 0.4215639820028127, 0.4144924998763526, 0.40740177632284785, 0.40029213639597666, 0.39316390527160006, 0.38601740828033804, 0.3788529709402775, 0.37167091898981536, 0.36447157842064876, 0.35725527551090097, 0.3500223368584194, 0.3427730894142274, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.5444406694290911, 0.5454727568107971, 0.5464795224329934, 0.5474609238487435, 0.5484169185756942, 0.5493474640916114, 0.5502525178300285, 0.5511320371759969, 0.5519859794619416, 0.5528143019636234, 0.5536169618962004, 0.5543939164103963, 0.5551451225887657, 0.5558705374420657, 0.5565701179057242, 0.557243820836412, 0.5578916030087122, 0.5585134211118917, 0.559109231746772, 0.5596789914226995, ...], y_list=[0.4774041559084439, 0.4704983031324056, 0.4635706090249827, 0.45662139882241887, 0.44965099762620975, 0.4426597304349328, 0.43564792217612736, 0.4286158977382663, 0.4215639820028127, 0.4144924998763526, 0.40740177632284785, 0.40029213639597666, 0.39316390527160006, 0.38601740828033804, 0.3788529709402775, 0.37167091898981536, 0.36447157842064876, 0.35725527551090097, 0.3500223368584194, 0.3427730894142274, ...])
    272     # Nur wenn ausreichend Punkte vorhanden sind
    273     if len(x) >= 4:
=>  274         tck, u = splprep([x, y], s=0.0, per=True) # per=True für geschlossene Kurve (Orbit)
    275         u_fine = np.linspace(0, 1, 300)           # Feinere Parameterwerte
    276         return splev(u_fine, tck)
tck undefined, u undefined, splprep = <function splprep>, x = array([-2.81983172e-01, -2.81586769e-01, -2.8107....82513032e-01, -2.82445728e-01, -2.82269313e-01]), y = array([-0.00658939, -0.02166012, -0.03672233, -0... , 0.03861488, 0.02355395, 0.00848393]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-2.81983172e-01, -2.81586769e-01, -2.8107....82513032e-01, -2.82445728e-01, -2.82269313e-01]), array([-0.00658939, -0.02166012, -0.03672233, -0... , 0.03861488, 0.02355395, 0.00848393])], w=None, u=None, ub=None, ue=None, k=3, task=0, s=0.0, t=None, full_output=0, nest=None, per=True, quiet=1)
    153     """
    154 
=>  155     res = _impl.splprep(x, w, u, ub, ue, k, task, s, t, full_output, nest, per,
=>  156                         quiet)
    157     return res
res undefined, global _impl = <module 'scipy.interpolate._fitpack_impl' from '...ist-packages/scipy/interpolate/_fitpack_impl.py'>, _impl.splprep = <function splprep>, x = [array([-2.81983172e-01, -2.81586769e-01, -2.8107....82513032e-01, -2.82445728e-01, -2.82269313e-01]), array([-0.00658939, -0.02166012, -0.03672233, -0... , 0.03861488, 0.02355395, 0.00848393])], w = None, u = None, ub = None, ue = None, k = 3, task = 0, s = 0.0, t = None, full_output = 0, nest = None, per = True, quiet = 1
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_impl.py in splprep(x=array([[-0.28198317, -0.28158677, -0.28107965, .... 0.03861488, 0.02355395, -0.00658939]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.00338376, 0.00676636, 0.010...7609, 0.98985317, 0.9932336 , 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=597, per=True, quiet=1)
    172     wrk = _parcur_cache['wrk']
    173     iwrk = _parcur_cache['iwrk']
=>  174     t, c, o = _fitpack._parcur(ravel(transpose(x)), w, u, ub, ue, k,
=>  175                                task, ipar, s, t, nest, wrk, iwrk, per)
    176     _parcur_cache['u'] = o['u']
t = array([], dtype=float64), c undefined, o undefined, global _fitpack = <module 'scipy.interpolate._fitpack' from '/usr/...polate/_fitpack.cpython-312-x86_64-linux-gnu.so'>, _fitpack._parcur = <built-in function _parcur>, global ravel = <function ravel>, global transpose = <function transpose>, x = array([[-0.28198317, -0.28158677, -0.28107965, .... 0.03861488, 0.02355395, -0.00658939]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.00338376, 0.00676636, 0.010...7609, 0.98985317, 0.9932336 , 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 597, wrk = array([], dtype=float64), iwrk = array([], dtype=int32), per = True

ValueError: Invalid inputs.
      add_note = <built-in method add_note of ValueError object>
      args = ('Invalid inputs.',)
      with_traceback = <built-in method with_traceback of ValueError object>